The length of time for the expiration date or "best used before" date depends on the type of product, as well as the brand.

Perishable items (such as flax oils or certain probiotics) generally have shorter expiration dates. Although our warehouse is fully air-conditioned, these more fragile items are put in cold storage (freezer or refrigeration unit) for maximum freshness.

Our receiving department does its best to verify and then enter the correct expiration dates for all incoming products. However, discrepancies do occur from time to time. This being said, the exceptionally high turnover at iHerb ensures that our inventory is among the freshest in the industry.

Shipping Weight:

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0.46 kg

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Shipping Weight

The Shipping Weight includes the product, protective packaging material and the actual shipping box. In addition, the Shipping Weight may be adjusted for the Dimensional Weight (e.g. length, width &amp; height) of a package. It is important to note that certain types of products (e.g. glass containers, liquids, fragile, refrigerated or ice packed) will often require protective packaging material. As such, these products will reflect a higher Shipping Weight compared to the unprotected product.

Description

Mega-Mag liquid magnesium is a rich, natural source of concentrated magnesium ions with other minerals and trace elements that act as natural co-factors.

Magnesium is essential to over 400 different enzyme reactions and various other body functions. Magnesium ions (charged magnesium atoms) play a key role in nerve conduction, muscle contraction, bone and tooth formation, protein metabolism and are particularly important to heart and circulatory health. Research has shown many American diets to be deficient in magnesium.

Suggested Use

1/4 to 0.8 teaspoon (1 to 4 ml) daily with juice or food to mask the highly concentrated mineral flavor. To top off or fully supplement your diet with magnesium, we recommend starting with 1/4 teaspoon and increasing as needed, ideally spread throughout the day. We also recommend taking Mega-Mag with a large glass of fluid. Excess magnesium may cause a laxative effect.

Other Ingredients

A high magnesium, low sodium concentrate from Utah's Inland Sea, the Great Salt Lake. Contains no added ingredients.

Allergen Info: contains no known allergens.

Contains over 72 ionic trace minerals from seawater. ConcenTrace is a trade name for concentrated sea minerals from the Great Salt Lake.

The Primary Fuel For More Than 300 Functions In Your Body

On my Products-With-Reviews page, I have more reviews of other products I have bought and used. Without adequate amounts of magnesium to balance calcium, you’ll find yourself falling victim to hardening of the arteries, arthritis, diabetes, and senility. Magnesium is the activating mineral for close to 400 different enzyme reactions in the body – more than any other mineral. The bottom line is that magnesium is the most important major mineral needed by your body, and unfortunately, the one that is most often depleted. Fortunately, in addition to all its other benefits, Mega-Mag, Natural Ionic Magnesium is a great source of highly absorbable ionic magnesium – 400 mg in each day’s serving.

20 people found this helpful

Top Positive Review

Verified Purchase

The Primary Fuel For More Than 300 Functions In Your Body

On my Products-With-Reviews page, I have more reviews of other products I have bought and used. Without adequate amounts of magnesium to balance calcium, you’ll find yourself falling victim to hardening of the arteries, arthritis, diabetes, and senility. Magnesium is the activating mineral for close to 400 different enzyme reactions in the body – more than any other mineral. The bottom line is that magnesium is the most important major mineral needed by your body, and unfortunately, the one that is most often depleted. Fortunately, in addition to all its other benefits, Mega-Mag, Natural Ionic Magnesium is a great source of highly absorbable ionic magnesium – 400 mg in each day’s serving.

Was this review helpful to you?

Absorbs well

I like the form of magnesium in this product - Magnesium Chloride. I find that it absorbs better than others. I also find that it makes water taste better and softer to me. This is a very good thing because I often don't drink enough water. Most people seem to hate the taste of this stuff but that's not the case for me, as long as it is taken in a glass of water.
After using this product for awhile, I read that that the Great Salt Lake (where this is sourced) has one of the highest levels of mercury of any body of water in the world. I then came across a YouTube video by alternative health author John Heinerman showing the actual location where Trace Minerals Research source their products from. It was not a pretty picture - quite shocking actually. The YouTube videos are "Trace Minerals Truth Revealed" and "Trace Minerals Truth Revealed Part II" if you want to have a look. I was very disappointed because I really liked this stuff. It simply isn't worth it to me to risk ingesting mercury so I have stopped using it.
I am providing this information in my review so that other people can at least be aware that there may be a mercury (and other contaminant) issue here and can do their own research.
Now I take my magnesium chloride in the form of Life Flow Health Magenesium Oil on my skin. Magnesium chloride also helps raise DHEA (if it is low) by applying it to the skin - an added bonus.
I hope you find this information useful.

133 people found this helpful

Top Critical Review

Verified Purchase

Absorbs well

I like the form of magnesium in this product - Magnesium Chloride. I find that it absorbs better than others. I also find that it makes water taste better and softer to me. This is a very good thing because I often don't drink enough water. Most people seem to hate the taste of this stuff but that's not the case for me, as long as it is taken in a glass of water.
After using this product for awhile, I read that that the Great Salt Lake (where this is sourced) has one of the highest levels of mercury of any body of water in the world. I then came across a YouTube video by alternative health author John Heinerman showing the actual location where Trace Minerals Research source their products from. It was not a pretty picture - quite shocking actually. The YouTube videos are "Trace Minerals Truth Revealed" and "Trace Minerals Truth Revealed Part II" if you want to have a look. I was very disappointed because I really liked this stuff. It simply isn't worth it to me to risk ingesting mercury so I have stopped using it.
I am providing this information in my review so that other people can at least be aware that there may be a mercury (and other contaminant) issue here and can do their own research.
Now I take my magnesium chloride in the form of Life Flow Health Magenesium Oil on my skin. Magnesium chloride also helps raise DHEA (if it is low) by applying it to the skin - an added bonus.
I hope you find this information useful.

Was this review helpful to you?

miracle healing

ok this is the best form of magnesium supplement. i've been taking this for almost a year and i can honestly say it has healed me. i used to suffer two major conditions one in my lower back and another in my jaw and i can stay they're almost gone. highly recommend this for joints problems (especially post a strong treatment of quinolone antibiotics) and digestion issues in addition to better sleep and calmer nerves.